Difficulty scaling techniques

1. Game Complexity vs Game Difficulty (Gamification Achievement Systems Tips)
2. Gameplay Difficulty vs Player Skill Level (Gamification Player Progression Tips)
3. Experience Gain vs Skill Gain (Gamification Player Progression Tips)
4. Skill-Based Progression vs Level-Based Progression (Gamification Player Progression Tips)
5. Player Challenges vs Game Challenges (Gamification Achievement Systems Tips)